Mining-car-wheel bearing.



PATBNTED MAY 26, 1908.

W. G. FOWNBS, .13.65 R. J. GARDNER.

APPLIUATION FILED r. u 15 1907 TFE-, 1

INVEI-NTORE MINING GAN WHEEL BEARING.

ATTO V treuren sfrnrns earner onirica.

PORATIN OF PENNSYLVANIA.

specification of Letters Patent.

,WILLIAM C. FOWNES, JR., AND ROBRT' J. GARDNER, OF PITTSBURG, PENNSYLVANIA, AS-

SIGNORS TO THE S. JARVIS ADAMS COMPANY, OF PTTSBURG,

PENNSYLVANA, A @dit Patented Ma 28 tfii.

Application led May 15, 1907'. Serial No. 'd.

l To all it may concern:v

Be it known that We, Willman C. FoWNEs,

Jr., and ROBERT J. GADNER, citizens of the United States, both residing at Pittsburg, vin the county of Allegheny and State of Pennsylvania, have invented or discovered new and useful Improvements in Mining-Car- `Wheel Bearings, of which the following is a specification.

Uur4 invention relatesto improvements in wheels, pulleys, and other rotary devices and provide devices of this character which will have the endwise thrusts received by bearings so located. as to be thoroughly oiled; Which will have well oiled "anti-friction hearings; and which will. have their parts so constructed as to distribute the wear uniformly.

Referring to the drawings7 Figure 1 is a longitudinal section through the hub of a Wheel, the axle being in elevation ,I Fig. 2, a longitudinal section of the thrust sleeve and collar; Fig. 3, a section on the line of Fig. 2; and Fig. 4, a side elevation partly in section, showing the bearing 8.

0n the drawings, 1 represents the axle and 2 the hub of a wheel rotarily mounted on the axle. The interior of thehub is provided with two series or sets of circular runways or lar 7 on the metal sleeve 5.

race-rings 3 for. the anti-friction rollers 4. The races and rollers are preferably the same as shown in the United States atent, No. 785,944, granted to William C. `ownes., Jr. `We have shown two sets of races, with three races in one set, and two in the other, the inner race of the rst set being reversed so that its inturned flange faces the thrust col- A spacing ring 3 is inserted between the adjacent ends of the two inner races of the rst named set. `We do not confine ourselves to a definite number of sets or to a definite number of races in a set or to a deiinite number of races occupied by rollers, or even to the presence of the races and rollers, unless they are specifically named in the claims.

metal sleeve 5, which encircles and rotates on the axle and extends from the shoulder or collar 6 on the axle to the outer end of the hub, The sleeve 5 has its inner end in engagement with the shoulder 6 and lis rovided externally at about the middle o its y length with the thrust Collar or bearing 7,

The rollers roll on the outer surface-of thesaidutwo sets of races `1n frictional contact with the 'outer face of the bearing 7. lreferahly the hearing ring 8 will have the arms or members 8, which are bent down nearly to a .rightangle 'to the body of the bearing 8. When driven into the axial o ening in. the hub, the arms 8 will, by their e asticity bind against the interior wall of the hub and prevent the rotation of the hearing therein.

The outer end of the hub 2 is covered by the plate 9, which has a central opening for the axle 1, and furnishes an abutment for the outer race 3 and a stop to hold. the rollers -i in the said race. n

The hollow oil-con doctor i0 is arched over the end of lthe axle l and attached to dianietricaliy opposite places on the outer end of the hub. The oil-conductor is provided with the inlet opening 1l opposite the center of the axle. y T he oil introduced through the opening il iiows through the oil. ducts the said oilconduetor into the ducts i3 r lead through the plate 9 and the hub points in aiinement with the space het the said two sets oi races er their equiv By this construction the oil is admitt the oil ducts directlyT to the bee which are the parts of the wheel that sustain. the endwisettlnusts of the wheel on the aide. In wheels as usually constructed, the said thrusts are taken by the collar 6 and the in`- wardly extending liubeiilange le at the inner end of the hub, and by a washer or nut at the outer end thereof. The collar 5 and the flange i4 and adjacent portions of the. hub anda-Xie have been found very diflicult to be kept well oiled., these parts often becoming dry and kworn before their condition became known. With our construction the thrusts are entirely taken from the said iiange and collar.

The rotation of the wheel and the action oi" gravitation cause the flow of oil to the ducts 13. The oil may occupy* the spaces about the races and rollers without flowing out `at the end of the huh, provided its leve-l lisinbt above the lower edge ofthe flange la oixofthe opening in the plate 9. '4. y

The packing 15 is placed between the hub 1 and the plate 9, and the packing li5,vbe-.

slowly `rotates on ,the same.

Will be noticed that this pin or any equivalent device is read'ly accessible Without the necessity of removing the oil-conductor 1U.

'lhe sleeve 5 is preferably madev loose on the axle so that the saine may revolve and thereby distribute the Wear uniformly around In car-wheels the under side of the axle becomes Worn the most rapidly, as is clear. 1f our sleeve were rigid on the axle, it would become Worn rapidly on its under side. By making the sleeve loose Ion the axle, it the axle, thus continually presenting afresh surface to sustain the pressure and Wear of the rollers 4. This feature, while not being absolutely essential in all the embodiments of the presentinvention, is a very important one, inasmuch asit prolongs the life ofthe sleeve many times.

The bearing or collar 7 and the sleeve 5 may be connected together in various ways, but We prefer to make the two separate and then unite them rigidly. The bearing 7 is a metal disk having a central opening to receive the sleeve 5, the opening having the same diameter as substantially the external diameter of the sleeve, and also any desired number oi recesses 18 extending out beyond the sleeve 5. T he bearing or collar 7 is placed over the sleeve at about the center of the latter and is held from rotary movement on the sleeve by means of the projections or r l bosses 19 which are forced 1n any desired manner from the sleeve into the said recesses 18 in the bearing. The collar 7 is prevented from longitudinal movement on the sleeve 5 by means of the ribs or folds 2() forced in any desired manner outwardly from the body of' the sleeve and into contact with the opposite sides of the collar.

It is readily seen that, the hub rotates, the rollers will be caused to rotate on the sleeve 5, causing aaslow backward rotation of the sleeve. This rotation of the sleeve constantly changes the line ol Greatest stress or of transverse thrust on the sleeve, so that the latter will not wear continually on a single longitudinal line, but uniformly around the entire circumference of the sleeve. The thrust of thc hub longitudinally of the sleeve is resisted in one direction by the engagement of the ring or bearing 8 and the collar 7,

- which is held from movement to the right by the engagement of the free ends of the arms with the adjacent race 3. A thrust on the hub toward the left will be transmitted from the bearing 8 to the`collar 7 and thence to the sleeve 5, which transmits the thrust to the shoulder 6 on the axle l1. A thrust on the hub to the right will be resisted by the pin 17.

i, Ve do not limit ourselves to the precise construction shown and described, but desire our claims to cover all devices which are 'j fair equivalents thereof.

WeA claim- 1. The combination of an axle, a sleeve` thereon, a thrust collar encircling the sleeve l and distinct therefrom, said sleeve having projections in engagement with the sides of the collar to prevent movement of the collar on the sleeve, a rotatable hub concentric l With the sleeve, anti-friction devices between the hub and the sleeve, and a thrust bearing carried by the hub and cooperative With the i said thrust collar. l 2. The combination of an axle, a sleeve l, rotatable thereon, a thrust collar encircling the sleeve and distinct therefrom, said sleeve having projections in engagemer'it with the sides ofthe collar to prevent movement ol' the collar on the sleeve, a rotatable hub concentric With the sleeve,and a thrust bearing carried by the hub and coperative with the said thrust collar.

3. The,ocombination of an axle, a sleeve rotatable thereon, a thrust collar on the sleeve, a rotatable hub concentric with the sleeve, anti-friction devices between the hub -and the sleeve, race-rings for said anti-fric tion devices, and a thrust bearing carried by the hub and cooperative at one side with the said thrust collar and at the other side With one of the said race-rings.

4. The combination of an axle, a'sleeve thereon, a thrust collar on the sleeve, a rotatable hub concentric ivith the sleeve, and a thrust bearinff carried by the hub and coperative with t ie said thrust collar, said sleeve having portions ol" its wall in recesses in the said thrust collar.

5. ',lhe combination of an axle, a sleeve thereon, a thrust collar on the sleeve, a rotatable hub concentric with the sleeve, and a thrust bearing carried by the hub and coperativc with the said thrust collar, said sleeve having annular ribs in engagement with the opposite faces ol'4 the said thrust collar. v

(i. 'lhc mnnhination of an axle, a slccvc thereon, a thrust collar on the sleeve, a rotatable huh concentric with the sleeve, and a thrust bearing carried by the hub and coperative with the said thrust collar, said sleeve having portions ot its wall in recesses in the said thrust collar and havingannular ribs in engagement with the opposite faces of thc said thrust collar.

-7. The combination of an axle, a sleeve thereon, a thrust collar on the sleeve, a rotatable hub concentric with the sleeve, and a thrust bearing carried by the hub and copcrative with the said thrust collar, said sleeve having annular folds in engagenunt with the opposite faces of thesaid thrust collar` 8. The combination of an axle, a sleeve thereon, a thrust collar on the sleeve, a rotatable hub eoneentrie With the sleeve, and a Signed et Pittsburg, Pe., this 13th day of thrust bearing Carried by the hub and eop- May, A. D. 1907.

eretive with the seid thrust collar, saidthrust WILLIAM C. FOW'NES, JR. bearing-having resilient arms in engagement RGBERT J. GARDNER. 5 with' the .Wall of the axial opening in the hub Witnesses: to' prevent the said bearing from rotation y F. N. BARBER, therein.

C. EGGERS. 

